Frequencies for first 10,000 rows of plstc_srgry_sw variable in pos2007 dataset :

      spec: |
    plastic |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,666       96.66       96.66
          N |        182        1.82       98.48
          Y |        152        1.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017